513 lines
16 KiB
PHP
513 lines
16 KiB
PHP
<?php
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/**
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* Twenty Fourteen functions and definitions
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*
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* Set up the theme and provides some helper functions, which are used in the
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* theme as custom template tags. Others are attached to action and filter
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* hooks in WordPress to change core functionality.
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*
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* When using a child theme you can override certain functions (those wrapped
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* in a function_exists() call) by defining them first in your child theme's
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* functions.php file. The child theme's functions.php file is included before
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* the parent theme's file, so the child theme functions would be used.
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*
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* @link http://codex.wordpress.org/Theme_Development
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* @link http://codex.wordpress.org/Child_Themes
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*
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* Functions that are not pluggable (not wrapped in function_exists()) are
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* instead attached to a filter or action hook.
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*
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* For more information on hooks, actions, and filters,
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* @link http://codex.wordpress.org/Plugin_API
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*
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* @package WordPress
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* @subpackage Twenty_Fourteen
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* @since Twenty Fourteen 1.0
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*/
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/**
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* Set up the content width value based on the theme's design.
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*
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* @see twentyfourteen_content_width()
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*
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* @since Twenty Fourteen 1.0
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*/
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if ( ! isset( $content_width ) ) {
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$content_width = 474;
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}
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/**
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* Twenty Fourteen only works in WordPress 3.6 or later.
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*/
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if ( version_compare( $GLOBALS['wp_version'], '3.6', '<' ) ) {
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require get_template_directory() . '/inc/back-compat.php';
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}
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if ( ! function_exists( 'twentyfourteen_setup' ) ) :
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/**
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* Twenty Fourteen setup.
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*
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* Set up theme defaults and registers support for various WordPress features.
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*
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* Note that this function is hooked into the after_setup_theme hook, which
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* runs before the init hook. The init hook is too late for some features, such
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* as indicating support post thumbnails.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_setup() {
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/*
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* Make Twenty Fourteen available for translation.
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*
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* Translations can be added to the /languages/ directory.
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* If you're building a theme based on Twenty Fourteen, use a find and
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* replace to change 'twentyfourteen' to the name of your theme in all
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* template files.
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*/
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load_theme_textdomain( 'twentyfourteen', get_template_directory() . '/languages' );
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// This theme styles the visual editor to resemble the theme style.
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add_editor_style( array( 'css/editor-style.css', twentyfourteen_font_url() ) );
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// Add RSS feed links to <head> for posts and comments.
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add_theme_support( 'automatic-feed-links' );
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// Enable support for Post Thumbnails, and declare two sizes.
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add_theme_support( 'post-thumbnails' );
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set_post_thumbnail_size( 672, 372, true );
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add_image_size( 'twentyfourteen-full-width', 1038, 576, true );
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// This theme uses wp_nav_menu() in two locations.
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register_nav_menus( array(
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'primary' => __( 'Top primary menu', 'twentyfourteen' ),
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'secondary' => __( 'Secondary menu in left sidebar', 'twentyfourteen' ),
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) );
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/*
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* Switch default core markup for search form, comment form, and comments
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* to output valid HTML5.
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*/
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add_theme_support( 'html5', array(
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'search-form', 'comment-form', 'comment-list', 'gallery', 'caption'
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) );
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/*
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* Enable support for Post Formats.
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* See http://codex.wordpress.org/Post_Formats
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*/
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add_theme_support( 'post-formats', array(
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'aside', 'image', 'video', 'audio', 'quote', 'link', 'gallery',
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) );
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// This theme allows users to set a custom background.
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add_theme_support( 'custom-background', apply_filters( 'twentyfourteen_custom_background_args', array(
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'default-color' => 'f5f5f5',
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) ) );
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// Add support for featured content.
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add_theme_support( 'featured-content', array(
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'featured_content_filter' => 'twentyfourteen_get_featured_posts',
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'max_posts' => 6,
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) );
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// This theme uses its own gallery styles.
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add_filter( 'use_default_gallery_style', '__return_false' );
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}
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endif; // twentyfourteen_setup
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add_action( 'after_setup_theme', 'twentyfourteen_setup' );
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/**
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* Adjust content_width value for image attachment template.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_content_width() {
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if ( is_attachment() && wp_attachment_is_image() ) {
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$GLOBALS['content_width'] = 810;
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}
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}
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add_action( 'template_redirect', 'twentyfourteen_content_width' );
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/**
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* Getter function for Featured Content Plugin.
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*
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* @since Twenty Fourteen 1.0
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*
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* @return array An array of WP_Post objects.
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*/
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function twentyfourteen_get_featured_posts() {
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/**
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* Filter the featured posts to return in Twenty Fourteen.
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*
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* @since Twenty Fourteen 1.0
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*
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* @param array|bool $posts Array of featured posts, otherwise false.
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*/
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return apply_filters( 'twentyfourteen_get_featured_posts', array() );
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}
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/**
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* A helper conditional function that returns a boolean value.
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*
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* @since Twenty Fourteen 1.0
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*
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* @return bool Whether there are featured posts.
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*/
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function twentyfourteen_has_featured_posts() {
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return ! is_paged() && (bool) twentyfourteen_get_featured_posts();
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}
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/**
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* Register three Twenty Fourteen widget areas.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_widgets_init() {
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require get_template_directory() . '/inc/widgets.php';
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register_widget( 'Twenty_Fourteen_Ephemera_Widget' );
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register_sidebar( array(
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'name' => __( 'Primary Sidebar', 'twentyfourteen' ),
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'id' => 'sidebar-1',
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'description' => __( 'Main sidebar that appears on the left.', 'twentyfourteen' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Content Sidebar', 'twentyfourteen' ),
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'id' => 'sidebar-2',
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'description' => __( 'Additional sidebar that appears on the right.', 'twentyfourteen' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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register_sidebar( array(
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'name' => __( 'Footer Widget Area', 'twentyfourteen' ),
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'id' => 'sidebar-3',
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'description' => __( 'Appears in the footer section of the site.', 'twentyfourteen' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h1 class="widget-title">',
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'after_title' => '</h1>',
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) );
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}
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add_action( 'widgets_init', 'twentyfourteen_widgets_init' );
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/**
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* Register Lato Google font for Twenty Fourteen.
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*
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* @since Twenty Fourteen 1.0
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*
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* @return string
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*/
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function twentyfourteen_font_url() {
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$font_url = '';
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/*
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* Translators: If there are characters in your language that are not supported
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* by Lato, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Lato font: on or off', 'twentyfourteen' ) ) {
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$font_url = add_query_arg( 'family', urlencode( 'Lato:300,400,700,900,300italic,400italic,700italic' ), "//fonts.googleapis.com/css" );
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}
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return $font_url;
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}
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/**
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* Enqueue scripts and styles for the front end.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_scripts() {
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// Add Lato font, used in the main stylesheet.
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wp_enqueue_style( 'twentyfourteen-lato', twentyfourteen_font_url(), array(), null );
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// Add Genericons font, used in the main stylesheet.
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wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.0.2' );
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// Load our main stylesheet.
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wp_enqueue_style( 'twentyfourteen-style', get_stylesheet_uri(), array( 'genericons' ) );
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// Load the Internet Explorer specific stylesheet.
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wp_enqueue_style( 'twentyfourteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfourteen-style', 'genericons' ), '20131205' );
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wp_style_add_data( 'twentyfourteen-ie', 'conditional', 'lt IE 9' );
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if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
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wp_enqueue_script( 'comment-reply' );
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}
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if ( is_singular() && wp_attachment_is_image() ) {
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wp_enqueue_script( 'twentyfourteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20130402' );
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}
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if ( is_active_sidebar( 'sidebar-3' ) ) {
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wp_enqueue_script( 'jquery-masonry' );
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}
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if ( is_front_page() && 'slider' == get_theme_mod( 'featured_content_layout' ) ) {
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wp_enqueue_script( 'twentyfourteen-slider', get_template_directory_uri() . '/js/slider.js', array( 'jquery' ), '20131205', true );
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wp_localize_script( 'twentyfourteen-slider', 'featuredSliderDefaults', array(
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'prevText' => __( 'Previous', 'twentyfourteen' ),
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'nextText' => __( 'Next', 'twentyfourteen' )
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) );
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}
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wp_enqueue_script( 'twentyfourteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20140319', true );
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}
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add_action( 'wp_enqueue_scripts', 'twentyfourteen_scripts' );
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/**
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* Enqueue Google fonts style to admin screen for custom header display.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_admin_fonts() {
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wp_enqueue_style( 'twentyfourteen-lato', twentyfourteen_font_url(), array(), null );
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}
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add_action( 'admin_print_scripts-appearance_page_custom-header', 'twentyfourteen_admin_fonts' );
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if ( ! function_exists( 'twentyfourteen_the_attached_image' ) ) :
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/**
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* Print the attached image with a link to the next attached image.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_the_attached_image() {
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$post = get_post();
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/**
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* Filter the default Twenty Fourteen attachment size.
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*
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* @since Twenty Fourteen 1.0
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*
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* @param array $dimensions {
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* An array of height and width dimensions.
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*
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* @type int $height Height of the image in pixels. Default 810.
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* @type int $width Width of the image in pixels. Default 810.
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* }
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*/
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$attachment_size = apply_filters( 'twentyfourteen_attachment_size', array( 810, 810 ) );
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$next_attachment_url = wp_get_attachment_url();
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/*
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* Grab the IDs of all the image attachments in a gallery so we can get the URL
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* of the next adjacent image in a gallery, or the first image (if we're
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* looking at the last image in a gallery), or, in a gallery of one, just the
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* link to that image file.
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*/
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$attachment_ids = get_posts( array(
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'post_parent' => $post->post_parent,
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'fields' => 'ids',
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'numberposts' => -1,
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'post_status' => 'inherit',
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'post_type' => 'attachment',
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'post_mime_type' => 'image',
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'order' => 'ASC',
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'orderby' => 'menu_order ID',
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) );
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// If there is more than 1 attachment in a gallery...
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if ( count( $attachment_ids ) > 1 ) {
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foreach ( $attachment_ids as $attachment_id ) {
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if ( $attachment_id == $post->ID ) {
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$next_id = current( $attachment_ids );
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break;
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}
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}
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// get the URL of the next image attachment...
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if ( $next_id ) {
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$next_attachment_url = get_attachment_link( $next_id );
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}
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// or get the URL of the first image attachment.
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else {
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$next_attachment_url = get_attachment_link( array_shift( $attachment_ids ) );
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}
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}
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printf( '<a href="%1$s" rel="attachment">%2$s</a>',
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esc_url( $next_attachment_url ),
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wp_get_attachment_image( $post->ID, $attachment_size )
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);
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}
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endif;
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if ( ! function_exists( 'twentyfourteen_list_authors' ) ) :
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/**
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* Print a list of all site contributors who published at least one post.
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*
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* @since Twenty Fourteen 1.0
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*/
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function twentyfourteen_list_authors() {
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$contributor_ids = get_users( array(
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'fields' => 'ID',
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'orderby' => 'post_count',
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'order' => 'DESC',
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'who' => 'authors',
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) );
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foreach ( $contributor_ids as $contributor_id ) :
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$post_count = count_user_posts( $contributor_id );
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// Move on if user has not published a post (yet).
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if ( ! $post_count ) {
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continue;
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}
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?>
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<div class="contributor">
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<div class="contributor-info">
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<div class="contributor-avatar"><?php echo get_avatar( $contributor_id, 132 ); ?></div>
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<div class="contributor-summary">
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<h2 class="contributor-name"><?php echo get_the_author_meta( 'display_name', $contributor_id ); ?></h2>
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<p class="contributor-bio">
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<?php echo get_the_author_meta( 'description', $contributor_id ); ?>
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</p>
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<a class="button contributor-posts-link" href="<?php echo esc_url( get_author_posts_url( $contributor_id ) ); ?>">
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<?php printf( _n( '%d Article', '%d Articles', $post_count, 'twentyfourteen' ), $post_count ); ?>
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</a>
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</div><!-- .contributor-summary -->
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</div><!-- .contributor-info -->
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</div><!-- .contributor -->
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<?php
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endforeach;
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}
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endif;
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/**
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* Extend the default WordPress body classes.
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*
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* Adds body classes to denote:
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* 1. Single or multiple authors.
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* 2. Presence of header image.
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* 3. Index views.
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* 4. Full-width content layout.
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* 5. Presence of footer widgets.
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* 6. Single views.
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* 7. Featured content layout.
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*
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* @since Twenty Fourteen 1.0
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*
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* @param array $classes A list of existing body class values.
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* @return array The filtered body class list.
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*/
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function twentyfourteen_body_classes( $classes ) {
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if ( is_multi_author() ) {
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$classes[] = 'group-blog';
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}
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if ( get_header_image() ) {
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$classes[] = 'header-image';
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} else {
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$classes[] = 'masthead-fixed';
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}
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if ( is_archive() || is_search() || is_home() ) {
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$classes[] = 'list-view';
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}
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if ( ( ! is_active_sidebar( 'sidebar-2' ) )
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|| is_page_template( 'page-templates/full-width.php' )
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|| is_page_template( 'page-templates/contributors.php' )
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|| is_attachment() ) {
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$classes[] = 'full-width';
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}
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if ( is_active_sidebar( 'sidebar-3' ) ) {
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$classes[] = 'footer-widgets';
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}
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if ( is_singular() && ! is_front_page() ) {
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$classes[] = 'singular';
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}
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if ( is_front_page() && 'slider' == get_theme_mod( 'featured_content_layout' ) ) {
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$classes[] = 'slider';
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} elseif ( is_front_page() ) {
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$classes[] = 'grid';
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}
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return $classes;
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}
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add_filter( 'body_class', 'twentyfourteen_body_classes' );
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/**
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* Extend the default WordPress post classes.
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*
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* Adds a post class to denote:
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* Non-password protected page with a post thumbnail.
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*
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* @since Twenty Fourteen 1.0
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*
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* @param array $classes A list of existing post class values.
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* @return array The filtered post class list.
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*/
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function twentyfourteen_post_classes( $classes ) {
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if ( ! post_password_required() && ! is_attachment() && has_post_thumbnail() ) {
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$classes[] = 'has-post-thumbnail';
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}
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return $classes;
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}
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add_filter( 'post_class', 'twentyfourteen_post_classes' );
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/**
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* Create a nicely formatted and more specific title element text for output
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* in head of document, based on current view.
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*
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* @since Twenty Fourteen 1.0
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*
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* @param string $title Default title text for current view.
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* @param string $sep Optional separator.
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* @return string The filtered title.
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*/
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function twentyfourteen_wp_title( $title, $sep ) {
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global $paged, $page;
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if ( is_feed() ) {
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return $title;
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}
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// Add the site name.
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$title .= get_bloginfo( 'name', 'display' );
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// Add the site description for the home/front page.
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$site_description = get_bloginfo( 'description', 'display' );
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if ( $site_description && ( is_home() || is_front_page() ) ) {
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$title = "$title $sep $site_description";
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}
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// Add a page number if necessary.
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if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
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$title = "$title $sep " . sprintf( __( 'Page %s', 'twentyfourteen' ), max( $paged, $page ) );
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}
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return $title;
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}
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add_filter( 'wp_title', 'twentyfourteen_wp_title', 10, 2 );
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// Implement Custom Header features.
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require get_template_directory() . '/inc/custom-header.php';
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// Custom template tags for this theme.
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require get_template_directory() . '/inc/template-tags.php';
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// Add Theme Customizer functionality.
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require get_template_directory() . '/inc/customizer.php';
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/*
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* Add Featured Content functionality.
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*
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* To overwrite in a plugin, define your own Featured_Content class on or
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* before the 'setup_theme' hook.
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*/
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if ( ! class_exists( 'Featured_Content' ) && 'plugins.php' !== $GLOBALS['pagenow'] ) {
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require get_template_directory() . '/inc/featured-content.php';
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}
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